For students in Grade 2 learning about air, water, their interactions, and pollution caused by human actions. 

From the Curriculum:

Through investigations, students will learn about the characteristics of air and the various forms of water in the environment, about changes in and interactions between air and water when they are heated and cooled, and about their movement through the environment. Students will also learn about the impact of human actions on the quality of air and water and about their responsibility for keeping air and water clean.

Big Ideas:

• Air and water are a major part of the environment;
• Living things need air and water to survive;
• Changes to air and water affect living things and the environment
• Our actions affect the quality of air and water, and its ability to sustain life.